Blackview OSCAL Marine 3 vs Oukitel C66

At a glance

Brand: Blackview; Oukitel
Release date: December 2025, 5 months ago; January 2026, 4 months ago
AnTuTu: 235.000 Antutu v10 Overall performance better than 57% of devices; 308.681 Antutu v10 Overall performance better than 61% of devices

Size: 6.56"; 6.73"
Resolution: 720 x 1612 px HD+; 720 x 1560 px HD+
Type: LCD IPS; LCD IPS
Density: 269 ppi Medium Density; 255 ppi Medium Density
Aspect ratio: 20:9; 21:9
Features: Water Drop Notch, Refresh rate 90 Hz, Brightnes 400 cd/m² (typ), Scratch resistant, Dragontrail glass, Corning Gorilla Glass 5, Panda glass, Capacitive, Multi-touch; Hole-punch Notch, Refresh rate 120 Hz, Brightnes 500 cd/m² (typ), Brightnes 450 cd/m² (typ), 1500:1 contrast ratio, 2.5D curved glass screen, Corning Gorilla Glass 5, Capacitive, Multi-touch, Frameless, In-cell

Chipset: MediaTek Helio G81 (MT6769); Unisoc Tiger T615 (T7250)
CPU: 2x Cortex A75 2.0 GHz + 6x Cortex A55 1.7 GHz; 2 x ARM Cortex A75 1.8Ghz + 6 x ARM Cortex A55 1.6Ghz
CPU type: Octa-Core; Octa-Core
Process: 12 nm; 12 nm
Frequency: 2 GHz; 1.8 GHz
GPU: ARM Mali-G52 MC2; Mali-G57 MP1
RAM: 8 GB; 4 GB
RAM type: LPDDR4X RAM; —
64-bit: Yes; Yes

Resolution: 16 Mpx; 64 Mpx
Aperture: ƒ/ 2.2; ƒ/ 1.8
Flash: LED; LED
Optical stabilization: No; No
Slow motion: No, 30 fps; No, 30 fps
Features: Digital zoom, Dual camera, Autofocus, Touch focus, Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer; Digital zoom, Triple camera, Autofocus, Touch focus, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer

Capacity: 128 GB; 128 GB
Type: eMMC 5.1 Storage; eMMC 5.1 Storage
SD slot: Yes , Slot for SD or second SIM card; Yes , Slot for SD or second SIM card

Dimensions: 83.0 mm 174.6 mm 10.7 mm Print 3D Model; 78.0 mm 165.0 mm 8.7 mm Print 3D Model
Weight: 245 g; 198 g
Materials: Rugged Smartphone, Polycarbonate; Plastic
Colors: Black White Silver; Black Gold Gray Purple Orange
Water/dust resistance: IP68, IP69 , MIL-STD-810H; —
Usable surface: 71 %; 87 %

SIM: Dual SIM Dual Standby (Nano SIM + Nano SIM); Dual SIM Dual Standby (Nano SIM + Nano SIM)
Bluetooth: Bluetooth 5.2; Bluetooth 5.2
Bluetooth profiles: A2DP (Advanced Audio Distribution Profile); A2DP (Advanced Audio Distribution Profile)
Wi-Fi: 802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac; 802.11a , 802.11b , 802.11g , 802.11n , 802.11ac
Wi-Fi features: Dual band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display; Wi-Fi Hotspot
USB: USB Type-C; USB Type-C
USB features: Charging, OTG; Charging, OTG
Navigation: GPS, A-GPS, GLONASS, Beidou, Galileo; GPS, A-GPS, GLONASS, Beidou, Galileo

4G LTE: B3 (1800), B5 (850), B7 (2600), B8 (900), B19 (800), B20 (800), B28b (700), B28a (700), B40 (TDD 2300), B41 (TDD 2500); B1 (2100), B2 (1900), B3 (1800), B4 (1700/2100 AWS 1), B5 (850), B7 (2600), B8 (900), B12 (700), B17 (700), B18 (800), B19 (800), B20 (800), B26 (850), B28b (700), B28a (700), B34 (TDD 2100), B38 (TDD 2600), B39 (TDD 1900), B40 (TDD 2300), B41 (TDD 2500), B66 (1700/2100)
3G: B8 (900); B1 (2100), B2 (1900), B4 (1700/2100 AWS A-F), B8 (900)
2G: B2 (1900), B3 (1800), B5 (850), B8 (900); B2 (1900), B3 (1800), B5 (850), B8 (900)